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matlab调用龙格库塔法出错In an assignment A(I) = B,the number of elements in B and I must be the使用RK4求解常微分出错,常微方程如下,h+d=23为常量,欧米茄是已知的数组,共27个元素,程序中用omg定义.θ是定义的 now that i`ve lost everyting to you want to start something new ,and it`s breaking my heart you`renow that i`ve lost everyting to you want to start something new ,and it`s breaking my heart you`re leaving,baby i`m griveving是什么意思 Find the value of 2a+10 when a is equal to 4.5 I am familiar _______the story .I've read it many times.A.to B.atc.by D.with _____ you call me to say you're not coming,I'll see you at the theatre.A.though B.whether C.until D.unless 选什么 原因 高中英语有哪些难点? 高中英语难题 In my opinion ,they will carry on the work ____ they can get the money they need.A.until B.unless C.though D.whether 选什么 请给出原因 You are wrong… 这里如果用until翻译过来是 在我看来,他们会一直工作 the minimum value of y=x^3-x on the interval (0,1)how to find the minimum and maximum values for the function like:y=ax^3-bx? 这是什么蘑菇啊 已知:y=y1+y2,y1与x2成正比例,y2与x成反比例,且x=1时,y=3 ,x=-1时 y=1.求x=2分之1时,y的值两式子联立怎么得出答案的? 已知y=y1+y2,y1与x2成正比例,y2与x-2成正比例,当x=1时,y=0;当x=—3时,y=4,求x=3时,y的值 已知Y=Y1-Y2,Y1与X2成反比例,Y2与X2成正比例,当x=1时,y=3;x=-1时,y=7,则当x=2时,y的值是___.注：X2为X的平方. 已知y=y1-y2,y1与x+2成反比例函数,y2与x2成正比例函数,并且x=1时,y=-1 ,当x=-3时,y=-21,求x=2时,y的值 求tan20+4sin20的值 直线y=1/2(x+k)于x,y轴的交点分别为A,B,如果S三角形AOB小于等于1,那么k的取值范围是?帮帮忙吧! 直线y=0.5x+b与x轴,y轴的交点分别为A,B,如果三角形AOB的面积（O为原点）小于等于1,那么b的取值范围是 已知直线y=（1/2）x+b与x轴,y轴交与不同的点A和B,且（S三角形AOB）小于等于4,求b的取值范 已知一条直线为y=2x+k,此直线与x轴、y轴围成的三角形面积为四分之三,则K等于? y=y1-y2,y1与x+2成反比例,y2与x2成正比例,并且x=-1时,y=2;x=-3,当X=3时,Y=8(1)求Y与X之间的函数关系式.（2）当X=2时,求Y的值 已知,y1与x 1成正比例,y2与x2成反比例,又知x=1时,y=8,当x=-1时,y=2．求y与x的表达式 y=sin(2x+π/3) x∈[0,π/2] 的单调增区间以及值域. 已知y=y1-y2,y1与x+2成反比例,y2与x2成正比例,并且x=-1时,y=2；x=-3时y=8 求当x=2时 y的值 72页答案有会的人说下嘛,十分谢谢了0f 72页答案有会的人说下嘛,打心底麻烦大伙5P 帮我翻译下 Walt invented the steam engine急! Jame watt __ the steam engine A was invented B invented C had invented D has invented忘说了 顺便附带解析呗！ 1.as a boy,james watt,who invented the steam engine later,____questions A always asks B has always1.as a boy,james watt,who invented the steam engine later,____questions A always asks B has always asked C was always asking D had always asked选C 为 The number of tigers in the wild ____(be) smaller than that of pandas. 7道小数化分数的题目 |-1＋1/2|+|-1/2+1/3|+|-1/3+1/4|+…+|-1/9+1/10|怎么做 6点钟时针和分针成反向直线,至少再经过多少分钟时针和分针又成反向直线? 帮帮做 |-1+1/2|+|-1/2+1/3|+|-1/3+1/4|+.+|-1/9+1/10|=___